fix(cli): quote env values with special characters

cli/src/config/env.ts

@@ -22,11 +22,18 @@ function parseEnvFile(contents: string) {
   }
 }
 
+function formatEnvValue(value: string): string {
+  if (/^[A-Za-z0-9_./:@-]+$/.test(value)) {
+    return value;
+  }
+  return JSON.stringify(value);
+}
+
 function renderEnvFile(entries: Record<string, string>) {
   const lines = [
     "# Paperclip environment variables",
     "# Generated by Paperclip CLI commands",
-    ...Object.entries(entries).map(([key, value]) => `${key}=${value}`),
+    ...Object.entries(entries).map(([key, value]) => `${key}=${formatEnvValue(value)}`),
     "",
   ];
   return lines.join("\n");